Kernrechtsfrage
Whether the constitutional complaint was admissible against the cantonal decision on mutual legal assistance in taking evidence
Extrahierter Entscheid
The complaint was admissible only as a public-law complaint for violation of a treaty; the request to deny mutual assistance itself was not enterable.
Extrahierte Begründung
Procedural treaty provisions in mutual legal assistance are not a civil-law dispute for appeal purposes; the Federal Court can generally only annul the challenged decision.